<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        .one{
            width:400px;
            height:400px;
            border:1px solid red;
            /*overflow:auto;*/         /*内容溢出的部分隐藏(auto/hidden/scroll)*/
            /*display: none;*/            /*隐藏元素，但是不占位置*/
            visibility:hidden;          /*隐藏元素，但是占位置*/
        }
        .two{
            width:200px;
            height:200px;
            background-color: pink;
        }
    </style>
</head>
<body>
   <div class="one">
       <br>fsdfsdfsd
       <br>fsdfsdfsd
       <br><br>
       <br>fsdfsdfsd
       <br>fsdfsdfsd
       <br>fsdfsdfsd
       <br><br>
       <br>fsdfsdfsd
       <br><br>
       <br>fsdfsdfsd
       <br>fsdfsdfsd
       <br><br>
       <br>fsdfsdfsd
       <br>fsdfsdfsd
       <br>fsdfsdfsd
       <br><br>fsdfsdfsd
       <br>fsdfsdfsd
       <br><br>
       <br>fsdfsdfsd
       <br>fsdfsdfsd
       <br>fsdfsdfsd
       <br><br>
       <br>
       <br>
       <br><br>
       <br>
       <br>
       <br>
       <br><br>
       <br>
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       <br>
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       <br>
       <br><br><br><br>

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   </div>
   <div class="two"></div>
</body>
</html>